Advisories

OpenClaw < 2026.4.22 - Owner Context Spoofing via Bearer Token Header

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severity
high
date
Affecting
  • OpenClaw < 2026.4.22

CWE
  • CWE-290: Authentication Bypass by Spoofing
CVSS
8.5
CVSS V4 Vector
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
vladimir tokarev (@VladimirEliTokarev)
Description
OpenClaw before 2026.4.22 derives loopback MCP owner context from spoofable server-issued bearer tokens in request headers. Non-owner loopback clients can present themselves as owner to bypass owner-gated operations by manipulating the sender-owner header metadata.

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